package com.huabo.utils;

/**
 * Created by Jackie Liu on 2017/4/8.
 */
public class Constants {

    /**
     * 默认值，用于取代null值，如附件上传时使用
     */
    public static final long DEFAULT_VALUE = -1;

    /**
     * 树的根节点父ID
     */
    public static final long ROOT = 1000;

    /**
     * 会话存储在request实例中的key值
     */
    public static final String SESSION_MODEL = "_session_model_";
}
